Not that I see where it makes any difference, but I've seen every Dream game that's been on TV, plus a few that haven't, because I've been to a few games live (@ Washington, @ Washington, Sacramento, Washington).
You can like Haynie, and that's cool... but Haynie ain't starting for Atlanta, not unless they trade Lennox, and move Latta to SG. Many of your remarks have truth to them on their face, but let's not kid ourselves: it's not like Haynie getting more time is the difference between them being a three-win team and a thirteen-win team. Start Haynie, and they might have five wins... but probably not. That team is just plain bad, and they can't stop anybody.
And besides which, to whatever degree that Haynie may be more efficient than Latta, it's clearly not enough so to regain the starting position. Just because you're more "efficient" doesn't mean that you deserve to start... or even if you do, that there's any chance you're going to: Eric Snow is a more efficient point guard than Daniel Gibson; he ain't starting. Chris Duhon is a more efficient point guard than Kirk Hinrich. For all that, let's just limit our search to WNBA teams, for the sake of argument: by the numbers, Lelani Mitchell is more efficient than Loree Moore, and she shoots better from the field. But Moore is one of their stars, so Mitchell gets to bring her efficiency off the bench. Guess who's more efficient between Lindsey Harding and Noelle Quinn? Guess who's starting (here's a hint: each question has a different answer)?
Look, you play to win the game, and that's all well and to the good, but you're also trying to put asses in the seats. And people ain't going to Phillips Arena to see Latta on the bench. If Lennox continues to occupy Meadors' doghouse, and Haynie turns out to be the beneficiary, then good for Haynie. I don't really care whether she starts or not, as I always felt that she wasn't good enough to start for Sacramento, but that doesn't mean she isn't good enough to start for a lesser team like Atlanta... But, pointing to efficiency stats as if you expect Haynie to start over Latta some day is only going to cause your blood pressure to go up.